AB 1-100

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AB-027 Potentiometric titration of chloride and bromide in the presence of each other  
Potentiometric titration of chloride and bromide in the presence of each other

If chloride and bromide are present in approximately equal molar concentrations they can be titrated directly with silver nitrate solution after addition of barium acetate. If, however, the molar ratio n(Br–) : n(Cl–) changes from 1 : 1 to 1 : 5, 1 : 10, 5 : 1 or 10 : 1 then greater relative errors must be expected with this method. The Bulletin describes an additional titration method that allows bromide to be determined in the presence of a large excess of chloride. The determination of small chloride concentrations in the presence of a large excess of bromide is not possible by titration.


German:  AB_027_2_d.pdf (154 KB)
English:  AB_027_2_e.pdf (151 KB)
French:  AB_027_2_f.pdf (153 KB)

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   Potentiometric titration of chloride and bromide in the presence of each other